// RUN โ€” FITS

Can the Apple M1 Ultra 64GB run Hymba?

Yes โ€” here's how fast and up to what context, with real measured numbers.

Hymba on the Apple M1 Ultra 64GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 810k 181.3-218.7 t/s ~2.3-2.7 (slow)
Q8 yes 833k 362.7-437.3 t/s ~4.5-5.5 (slow)
Q4 yes 843k 647.6-781 t/s ~8.1-9.8 (slow)

Estimate (memory-bound). Beyond "max context" the KV cache spills to SSD swap and speed drops to the "beyond" figure.

FAQ

Can the Apple M1 Ultra 64GB run Hymba?โ–ถ

Yes. At Q4 it generates ~647.6-781 tok/s and fits up to 843k context; beyond that it spills to SSD swap and slows to ~8.1-9.8 tok/s.

How much context fits?โ–ถ

At Q4, up to about 843k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.